I always see people into heavy or black metal... Did thrash metal die?
You know the way that a car battery works? What you do there is that you draw electrons from metals to have be drawn through the circuit ionizing the metals and vice versa when recharging the battery. Now as compared to the other metals gold is less generous when it comes to giving off electrons as compared to the other metals so when you are doing the same as in a battery to that of whatever compound contains all of above mentioned metals you will have gold the last remaining nonionized metal. Just pour in any chloride solution or any halide and you will soak up the other metals. Rinse and repeat til you have only gold left. Easy as pie!
